Improvement in velocipedes



W. DENOVAN.

Velocipede. No. 86738. Patented Feb. 9, 1869.

1 Jena V2.91.

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Letters Patent No, 86,? 38, dated Febma/ry 9, 1869.

IIVEROFEIMENT IN VELOCIPEDES.

The Schedule referred to in these- Letters Patent and making part of the same.

To all whom it may concern: Be it known that 1, WILLIAM Dnnovnn, of Philadelphia, in the county of Philadelphia, and State of Pennsylvania, have invented a newand improved Velocipede; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others'skilled in the art to make and use the 'same, reference being had to the accompanying drawin gs, forming part of this specification, in which Figure 1 represents a vertical longitudinal section of my improved velocipede, the plane of section being indicated by the line a: x, fig. 2.

Figure 2 is a plan or top view, partly in section, of the same.

Similar letters of reference indicate corresponding parts.

This invention relates to a new velocipede, which is propelled partly by muscular, partly by spring-power.

The invention consists in a new manner of connecting the swinging seat with a crank-axle, and with a spring, whereby the aforementioned object of combinedmuscular and spring-propulsion can in a satisfactory manner he obtained.

A, in the drawing, represents a frame, made of Wood,

or other suitable'rnaterial, of oblong or other suitable F is a horizontal transverse crank-shaft, having its hearings in the front part of the frame, its opposite cranks (l e being, by means of rods f and g, respect ively, connected with the cranks a and b, as shown.

There are three cranks, (l, c, and h, formed on the shaft F, the cranks (Z and h being in line, as shown.

or of suitable form.

, It is, by means of coiled springs H H, fastened in rear to a cross-bar, I, of the frame, said springs tending to draw it up.

The front part of the seat is, by means. of a rod, J, connected with the crank c or k of the shaft F.

The person occupying the seat has his feet onthe cranks h and c, and by applying slight pressure will cause the shaft F to make a half revolution until the said cranks are below the axle. Then the pressure on the shaft F is released, when the springs H, which were contracted by the aforesaid motion of the shaft F, will expand, and thereby elevate the seat, causing, by this motion, a further half revolution of the shaft F, until the cranks'c h are again above the shaft, as in the drawing. Every motion of the shaft F will, by the connecting-rods f 9, cause a corresponding motion of the shaft 0, andthe rear wheels are consequently revolved by combined action of the feet and springs, as aforesaid.

Having thus described my invention,

Patent- The combination, in avelocipede, of the crank-shafts O F, rods f g, springs H H, seat G, and rod J, all arranged and operating substantially as described, so that the velocipede can be operated by combined muscular and spring-power, as specified.

WM. DENOVAN.

Witnesses:

J OHN SHEDDEN, FnAnKLnv A. EALER.

G is the seat, made in form of a saddle, chair, horse,-

I claim as new, and desire to secure by Letters 

